Project Squirrel

[Outlaw]

Excellent. Last 2 questions for now...

1: Should I use 11T Steel Simplex sprockets (this one):

Or am I overthinking it and should use Platewheel Simplexes for all three parts of the mechanism? I ask because I feel like the "dm" bit on the 11T would be a bit too large for a 12mm steel shaft with key to go through and could lead to breaking said sprocket without so much of me breathing on it.

And 2, would it help for me to use a couple of Shaft Collars to keep the shafts from sliding out on use?

Once again I apologise for all the questions, just that I've been sitting on this project for so long, I just wanna get this right...

[Ocracoke]

Or am I overthinking it and should use Platewheel Simplexes for all three parts of the mechanism? I ask because I feel like the "dm" bit on the 11T would be a bit too large for a 12mm steel shaft with key to go through and could lead to breaking said sprocket without so much of me breathing on it.

I am not sure I follow. If you go down the key route, you need to account for half of the key height in the bore. I've had keys done in quite thin boss widths in relation to the bore without breaking. I'll see if I can get a photo of the key.

And 2, would it help for me to use a couple of Shaft Collars to keep the shafts from sliding out on use?

I've used them on the old version of Jibril and yeah, two inner shaft collars work. I do advise getting ones where they use two bolts though, single split collars don't work in my experience.

[Outlaw]

I am not sure I follow. If you go down the key route, you need to account for half of the key height in the bore. I've had keys done in quite thin boss widths in relation to the bore without breaking. I'll see if I can get a photo of the key.

Yeah, dyslexia's a bit of a you know what. I guess what I'm trying to say is that in that image, and with what the listing says is that the boss diameter being 14mm, and the shaft being 12mm, I'm honestly not sure the thin boss width'd be a bit too thin. Or am I just worrying for no good reason?

[Ocracoke]

Yeah, that is a bit too thin. 12 + (4/2) = 14mm which would be a problem. I would get a 12T sprocket with a 12mm bore since that should have a 16mm wide boss. You'll lose a litte bit on the reduction then (45 / 12 = 3.75:1) but assuming you are still using the 11T sprocket on the scoother motor, you'd want a 24T spocket to compensate (24 / 11 = 2.18:1, so 2.18 * 3.75 = ~8.18:1).